S-Video:A video signal that carries luminance (Y, brightness) and chrominance (C, colour) values as physically separate signals. Also known as Y/C video. Usually uses a small four-pin mini-DIN connector. First became popular during the S-VHS/Hi8 era.

Sample:A near-instantaneous recording of a signal, measured in thousandths of a second. Digital signals are
constructed by sampling analogue signals thousands of times per second. Each of these
individual samples are strung together to make a close approximation of the original signal.

Saturation:The level of colour in a vision signal or still image. A highly-saturated signal has very strong colours.

Scene:In film, television or stage, all the action/shots which take place at a certain time and location and comprise a segment of the program.

SCART:A type of multi-pin connector used in home entertainment systems.
More info: SCART Connectors

Scissor Platform:AKA scissor lift, a mechanical work platform which can be raised and lowered. Sometimes used to elevate a camera position. More info: Scissor Platform

SEG:Special Effects Generator. A device used to create special video effects.

Servo:Remote control of camera functions such as zoom and focus, by means of a motor. Servo controls can be
mounted an the lens housing, on the tripod/pedestal handles, or on a remote-control unit.

Setup:The black level of a video signal.

Shot:A continuous piece of video or film footage. Everything you get between pressing "record" and "stop".Related info: Camera shots

Signal Processing Device:Any device which takes a signal input, then modifies the signal before outputting it.

SLR:Single Lens Reflex, a popular type of still photography camera that uses a moveable mirror to synchronize the lens and viewfinder images.More info: SLR Cameras, Types of Camera

SMPTE:(Pronounced "simptee") Society of Motion Picture
and Television Engineers. A group which has set various video standards.

Snow:Random patterns of black and
white dots on a TV screen or vision monitor. Snow can be caused by an improperly tuned
television (or very poor reception), an unrecorded video tape, or dirty VCR heads.

Solder:An alloy of tin and lead that melts at a relatively low temperature. Used for securing electrical connections between components and wires.More Info: How to Solder